65897273937 has 8 divisors (see below), whose sum is σ = 95850580320. Its totient is φ = 39937741760.

The previous prime is 65897273933. The next prime is 65897273983. The reversal of 65897273937 is 73937279856.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65897273937 - 2² = 65897273933 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65897273933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998443512 + ... + 998443577.

It is an arithmetic number, because the mean of its divisors is an integer number (11981322540).

Almost surely, 2^65897273937 is an apocalyptic number.

It is an amenable number.

65897273937 is a deficient number, since it is larger than the sum of its proper divisors (29953306383).

65897273937 is a wasteful number, since it uses less digits than its factorization.

65897273937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996887103.

The product of its digits is 120022560, while the sum is 66.

The spelling of 65897273937 in words is "sixty-five billion, eight hundred ninety-seven million, two hundred seventy-three thousand, nine hundred thirty-seven".